| Porsgrunn to Pandino | 947.68 mi (1,525.14 km) |
| Porsgrunn to Paola | 1,392.53 mi (2,241.05 km) |
| Porsgrunn to Parabiago | 937.26 mi (1,508.37 km) |
| Porsgrunn to Parabita | 1,367.75 mi (2,201.17 km) |
| Porsgrunn to Parma | 989.35 mi (1,592.20 km) |
| Porsgrunn to Partanna | 1,484.45 mi (2,388.99 km) |
| Porsgrunn to Partinico | 1,463.34 mi (2,355.02 km) |
| Porsgrunn to Pasian di Prato | 914.24 mi (1,471.33 km) |
| Porsgrunn to Paterno | 1,506.76 mi (2,424.90 km) |
| Porsgrunn to Patti | 1,468.00 mi (2,362.51 km) |
| Porsgrunn to Paullo | 946.59 mi (1,523.39 km) |
| Porsgrunn to Pavia | 962.77 mi (1,549.43 km) |
| Porsgrunn to Pavullo nel Frignano | 1,022.49 mi (1,645.54 km) |
| Porsgrunn to Pedara | 1,504.49 mi (2,421.25 km) |
| Porsgrunn to Pellezzano | 1,288.96 mi (2,074.38 km) |
